Digium X100M FXO Module, Open BoxThe X100M FXO module allows the TDM400P card or TDM800P card to terminate analog telephone lines (POTS). Because of the modular design, a user can activate additional ports at any time with more S110M or X100M daughter cards. The X100M module passes all the call features any standard analog telephone line will support. Worldwide certifications are pending.

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